CPU Comparison

The Intel Core i5-1035G1 and the Intel Atom x7835RE present a fascinating study in contrasting design philosophies, yet the benchmark data reveals a surprisingly close contest. The Core i5, a mobile processor from the Ice Lake era, and the Atom, a low-power Amston Lake part, both land at the 65th percentile among all CPUs. Their average benchmark scores are within a few hundred points of each other, with the i5-1035G1 posting an average of 9684 against the Atom's 9430. This proximity in overall performance makes the specific workload breakdown essential for understanding which processor suits a given task.

Head-to-Head Benchmarks

The most striking observation from the head-to-head data is how the two chips trade blows based on workload type. The Core i5-1035G1 wins 12 of the 17 benchmark comparisons, but the Atom x7835RE secures 5 decisive victories in specific areas. The single-threaded performance gap is the clearest differentiator. In the PassMark single-thread test, the i5-1035G1 scores 2198, which is a massive 37.5% ahead of the Atom's 1599. This advantage is also visible in the Cinebench single-core tests, though the margins are smaller; the i5 leads by 1.2% in R15 (86 vs 85) and by 0.1% in R23 (855 vs 854).

The multi-core performance tells a different story. In Cinebench tests, the Core i5 holds a narrow but consistent lead across all versions. The i5-1035G1 scores 611 in R15 multi-core versus 609 for the Atom, and 6062 in R23 multi-core versus 6051. These deltas are minuscule, ranging from 0.1% to 0.3%, indicating that the two processors deliver essentially equivalent multi-threaded rendering performance despite their architectural differences. In PassMark's multithread test, the i5 again edges ahead, scoring 7211 compared to the Atom's 7119, a 1.3% difference.

However, the Atom x7835RE fights back with substantial wins in several specialized tasks. The most dramatic is data encryption, where the Atom scores 5579 against the i5's 4094, a massive 26.6% advantage for the Atom. The Atom also leads in find prime numbers, scoring 23 versus 19, a 17.4% difference. In floating-point math, the Atom's score of 16236 beats the i5's 15483 by 4.6%. The Atom also wins in physics (500 vs 423, a 15.4% lead) and random string sorting (10180 vs 9782, a 3.9% lead). The Core i5 counters with a dominant 52.7% lead in extended instructions (5524 vs 3617) and a 4.9% lead in data compression (80534 vs 76736).

Architecture Differences

The architectural divide between these two processors is fundamental. The Intel Core i5-1035G1 is built on the Ice Lake architecture, specifically from the Ice Lake-U family, using Intel's 10 nm process node. It features 4 cores and 8 threads, leveraging Hyper-Threading to double its logical processing capacity. Its cache layout includes 80 KB of L1 per core and 256 KB of L2 per core, with a shared 6 MB L3 cache. The die size is listed at 123 mm².

In contrast, the Intel Atom x7835RE comes from the Amston Lake architecture, part of the Atom generation using Gracemont cores. It also uses a 10 nm process node. Despite having double the physical cores at 8, it supports only 8 threads, meaning no Hyper-Threading. Its cache structure is different, with 96 KB of L1 per core and 2 MB of L2 per module, alongside the same 6 MB of shared L3 cache. The Atom's die size is not provided.

Memory support and I/O also differ significantly. The i5-1035G1 supports DDR4 memory over a dual-channel bus, providing a theoretical memory bandwidth of 51.2 GB/s. The Atom x7835RE supports both DDR4 and DDR5, but only over a single-channel bus, which caps its memory bandwidth at 38.4 GB/s. Both processors use PCIe Gen 3, but the Atom specifies 9 lanes (CPU only), while the i5 does not specify a lane count. The integrated graphics differ as well, with the i5 featuring UHD Graphics and the Atom featuring UHD Graphics 32EU. The Core i5 requires an Intel BGA 1526 socket, while the Atom uses Intel BGA 1264. Their release dates are also far apart, with the i5 launching in July 2019 and the Atom in April 2024.

Where Each One Wins

Based strictly on the benchmark outcomes, the Core i5-1035G1 is the clear winner for tasks that depend on single-threaded responsiveness and instruction set versatility. Its 37.5% lead in single-thread performance makes it the better choice for general desktop applications, light productivity, and any software that is not optimized for many cores. Its massive 52.7% advantage in extended instructions suggests it can handle complex, instruction-heavy workloads more efficiently. The i5 also wins in data compression, indicating faster file archiving or compression tasks. Its leads in integer math and the Cinebench suite, while small, show it is slightly better at standard multi-core rendering workloads.

The Atom x7835RE carves out a distinct niche in specialized, parallel-friendly tasks. Its 26.6% win in data encryption points to a strong capability in cryptography and secure data handling. The 17.4% lead in prime number finding and 15.4% lead in physics suggest it handles certain mathematical and simulation workloads better. Its advantages in floating-point math and random string sorting, while smaller, still indicate a solid performance in numerical computations and data organization tasks. The Atom's wins are not about raw speed but about efficiency in specific algorithmic patterns.

FAQ

Q: Which processor has better single-core performance?

A: The Intel Core i5-1035G1 is significantly ahead, scoring 2198 in the PassMark single-thread test compared to the Atom x7835RE's 1599, a 37.5% difference. Its lead in Cinebench R23 single-core is much smaller, at 855 versus 854.

Q: Is the Atom x7835RE better at any multi-core task?

A: No. The Core i5-1035G1 wins all Cinebench multi-core tests (R15, R20, R23) and the PassMark multithread test, though the margins are very small (0.1% to 1.3%). The Atom wins in specialized tasks like encryption and physics, but not in general multi-core benchmarks.

Q: How does memory bandwidth compare between the two?

A: The Core i5-1035G1 has a higher theoretical memory bandwidth of 51.2 GB/s due to its dual-channel DDR4 support. The Atom x7835RE supports both DDR4 and DDR5, but its single-channel bus limits it to 38.4 GB/s.

Q: What is the core and thread count for each processor?

A: The Core i5-1035G1 has 4 cores and 8 threads. The Atom x7835RE has 8 cores and 8 threads, meaning it lacks Hyper-Threading despite having more physical cores.

Q: Which processor wins in data encryption?

A: The Intel Atom x7835RE wins decisively, scoring 5579 in the PassMark data encryption test versus 4094 for the Core i5-1035G1, a 26.6% advantage.

Q: Do both processors use the same manufacturing process?

A: Yes, both are built on a 10 nm process node by Intel. However, they use different architectures: Ice Lake for the Core i5 and Amston Lake with Gracemont cores for the Atom.

Specification Differences

The two processors differ across nearly every core specification except for their L3 cache size and boost clock. Here is a breakdown of the key differences:

• Cores: 4 (i5-1035G1) vs 8 (Atom x7835RE)
• Threads: 8 (i5-1035G1) vs 8 (Atom x7835RE)
• Base Clock: 1000.00 MHz (i5-1035G1) vs 1.30 GHz (Atom x7835RE)
• Boost Clock: 3.60 GHz (both)
• TDP: 15 W (i5-1035G1) vs 12 W (Atom x7835RE)
• Socket: Intel BGA 1526 (i5-1035G1) vs Intel BGA 1264 (Atom x7835RE)
• Architecture: Ice Lake (i5-1035G1) vs Amston Lake (Atom x7835RE)
• L1 Cache: 80 KB per core (i5-1035G1) vs 96 KB per core (Atom x7835RE)
• L2 Cache: 256 KB per core (i5-1035G1) vs 2 MB per module (Atom x7835RE)
• Memory Support: DDR4 (i5-1035G1) vs DDR4, DDR5 (Atom x7835RE)
• Memory Bus: Dual-channel (i5-1035G1) vs Single-channel (Atom x7835RE)
• Memory Bandwidth: 51.2 GB/s (i5-1035G1) vs 38.4 GB/s (Atom x7835RE)
• Integrated Graphics: UHD Graphics (i5-1035G1) vs UHD Graphics 32EU (Atom x7835RE)
• Release Date: 2019-07-31 (i5-1035G1) vs 2024-04-07 (Atom x7835RE)
• Launch MSRP: Not applicable (i5-1035G1) vs $127 (Atom x7835RE)

The Verdict

The benchmark data paints a clear picture of two processors optimized for different priorities. The Intel Core i5-1035G1 is the superior choice for users who value responsive single-threaded performance, a wider instruction set, and higher memory bandwidth. Its 37.5% lead in single-thread PassMark is a decisive factor for everyday computing, and its wins in extended instructions and data compression make it more versatile for general software. It is the better all-around mobile processor for a typical user's workload.

The Intel Atom x7835RE, despite its higher core count and lower TDP, does not outperform the i5 in standard multi-core benchmarks. Its wins are concentrated in highly specific tasks: encryption, prime number finding, and physics simulations. This indicates it is a specialized processor for edge computing, industrial applications, or security-focused workloads where its strengths in cryptography and mathematical operations, combined with its 12 W TDP and support for DDR5 memory, make it a compelling option. For general-purpose computing, the data favors the Core i5-1035G1. For specialized, math-heavy or security-focused tasks, the Atom x7835RE holds the advantage.